Fixed the Intersection_1Ray_Masked unit test.
Fixed the Intersection_1Ray_Masked unit test.

The test was failing if ray masking support was enabled because it didn't force the usage of the 2-level BVH which, at the moment, is the only BVH that supports ray masking.

GPUOpen-LibrariesAndSDKs/RadeonRays_SDK,GPUOpen-LibrariesAndSDKs/RadeonRays_SDK,GPUOpen-LibrariesAndSDKs/RadeonRays_SDK